Abbreviate the words still spelled out

Warning²Federal courts, Illinois courts21st and 22nd editions

Where part of a correspondent's or an interviewee's institution is abbreviated and the rest is not, the remaining words are abbreviated too — “Univ. of Wis. L. Sch.”, not “Univ. of Wisconsin L. Sch.”.¹

1. 1R. 17.2.3 Letters, Memoranda, and Press Releases; R. 17.2.5 Interviews. Tables: T6 Case Names and Institutional Authors in Citations; T10 Geographical Terms; T13 Institutional Names in Periodical Titles.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.